A Tyrannosaurus rex was tall enough to look in your second-story bedroom window. It had between fifty and sixty teeth -- each six inches long. Few dinosaurs could run faster than a "Tyrannosourus rex" or escape its keen eyesight. What exactly did "Tyrannosourus rex" hunt? How did it stalk its prey? Read and find out all about one of the deadliest carnivores of the prehistoric world.